数控车削中刀具磨损对加工精度的影响  

Effects of Tool Wear on the Machining Accuracy of NC Turning

作　　者：欧阳八生[1] 彭庆林[1] 

机构地区：[1]南华大学机械工程学院,湖南衡阳421001

出　　处：《株洲工学院学报》2004年第2期78-80,共3页Journal of Zhuzhou Institute of Technology

摘　　要：在系统地分析了刀具切削刃的磨损对车外圆、锥度及成形表面尺寸精度的影响后,建立了切削刃的磨损与加工精度之关系的数学公式,确定了切削刃在特定加工中可容许的磨损量,因此,可根据工件给定的尺寸精度来确定刀具设定、补偿、修整及更换的条件和依椐。The dynamic wear of the tool edge during machining will affect the finish accuracy of the turned work. The effect mechanism of tool edge wear in NC turning step shafts, cones and form surfaces are studied systematically. The mathematical relations between the wear amount and the machining accuracy have been set up, by which the wear allowance for any specific tool edge in machining may be determined. Thus, conditions for tool resetting, the tool compensation change, tool dressing, and tool change may be determined based on given dimensional accuracy of the turned work.

关 键 词：数控车削 刀具磨损 加工精度 切削刃 磨损量 

分 类 号：TG51[金属学及工艺—金属切削加工及机床] TG71